#405A73
Closest named color: YInMn Blue (#415A77). oklch(45.7% 0.052 248), rgb(64, 90, 115).
Aa
White text reads best on this color (7.17:1).
About this color
#405A73 is a medium-dark, muted blue. In OKLCH its lightness is 46%, its chroma 0.052 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.007 away. White text reads best on it, at 7.17:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.92:1 |
| White text | 7.17:1 |
Values
| HEX | #405A73 |
| RGB | rgb(64, 90, 115) |
| HSL | hsl(209, 28%, 35%) |
| OKLCH | oklch(45.7% 0.052 248) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #405A73 | 7.17:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #405A73 | 2.92:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #405A73 text on white | 7.17:1 | AAA | Lc 84.8 | Fine for body text |
| #405A73 text on black | 2.92:1 | Fails | Lc -17.2 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EAEF
oklch(93.5% 0.009 247.9)
-
Step 200
200
#D1DAE4
oklch(88.4% 0.017 250.9)
-
Step 300
300
#B2C3D4
oklch(81% 0.03 248.2)
-
Step 400
400
#89A4BE
oklch(70.7% 0.049 247.5)
-
Step 500
500
#6C8DAD
oklch(63.1% 0.061 248)
-
Step 600
600
#537799
oklch(55.6% 0.067 247.7)
-
Step 700
700
#446483
oklch(49.2% 0.062 248.4)
-
Step 800
800 (this color)
#405A73
oklch(45.7% 0.052 248)
-
Step 900
900
#304456
oklch(37.8% 0.04 246.3)
-
Step 950
950
#1D2832
oklch(27.1% 0.024 246.3)
#405A73 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #505A74 | 0.022 |
| Deuteranopia (no green cones) | #4A5573 | 0.019 |
| Tritanopia (no blue cones) | #2D6062 | 0.044 |
| Achromatopsia (no color) | #575757 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #405A73
#405A73
oklch(45.7% 0.052 248)
- #6B5237
#6B5237
oklch(45.8% 0.052 68.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #405A73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.007
- Dusty Grape #545775 ΔE 0.029
- Dusk #4E5481 ΔE 0.038
- Light Navy Blue #2E5A88 ΔE 0.039
- Denim #3B638C ΔE 0.043
- Slate #516572 ΔE 0.044
- Denim Blue #3B5B92 ΔE 0.051
- Petrol #005F6A ΔE 0.051
Use #405A73 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.